TABLE 76. CHANGE IN THICKNESS OF ICE OF DIFFERENT THICKNESSES BROUGHT 

 INTO A REGION OF 6000 FREEZING DEGREE-DAYS AND 100 CM SUMMER 

 MELTING 



This table again illustrates a characteristic situation, i.e. , when thinner ice arrives in a re- 

 gion with climatic conditions characterized by a certain maximum ice thickness, it gradually be- 

 comes thinner. I computed table 77 according to the same formulas . 



TABLE 77. ICE THICKNESS IN CM WITH A CONSTANT 6000 FREEZING 

 BUT WITH VARIABLE SUMMER MELTING AND AN INITIAL 

 OF CM 



DEGREE-DAYS, 

 ICE THICKNESS 



From tables 76 and 77 it can be seen that it takes a great many years for ice to reach its max- 

 imum thickness . Hence , it follows that if the climatic conditions of a given region are known , the 

 thickness of ice accretion indicates its age. On the other hand, the maximum thickness of ice ac- 

 cretion, determined by some method, can serve as an excellent climatic characteristic for individ- 

 ual regions; actually, both the winter and summer regimes of the investigated regions enter into 

 this value . 



LITERATURE: 61, 62, 77, 177. 



231 



